diff --git a/helix-lock/src/main/java/org/apache/helix/lock/helix/LockListener.java b/helix-lock/src/main/java/org/apache/helix/lock/helix/LockListener.java
index d729bd60d1..7f29956612 100644
--- a/helix-lock/src/main/java/org/apache/helix/lock/helix/LockListener.java
+++ b/helix-lock/src/main/java/org/apache/helix/lock/helix/LockListener.java
@@ -25,7 +25,7 @@
  * supposed to clean up the work done by the user and return the system to a stable state before
  * releasing the lock.
  */
-interface LockListener {
+public interface LockListener {
   /**
    * call back called when the lock is preempted
    */